Mapping of QTLs conferring extremely early heading in rice (Oryza sativa L.)

被引：59

作者：

Fujino, K ^{[1
]}

Sekiguchi, H ^{[1
]}

机构：

[1] Hokkaido Green Bio Inst, Naganuma, Hokkaido 0691317, Japan

来源：

THEORETICAL AND APPLIED GENETICS | 2005年 / 111卷 / 02期

关键词：

D O I：

10.1007/s00122-005-2035-3

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Two genes related to extremely early heading were identified in populations derived from crosses between Hoshinoyume, a variety adapted to the northernmost limit of rice cultivation (Hokkaido), and Nipponbare, a variety adapted to the temperate region of Japan. The segregations for heading date clearly revealed that a two-gene model determined the extremely early heading in the F-2 and BC1F1 populations under natural field conditions in Hokkaido. Using molecular markers corresponding to ten known quantitative trait loci (QTLs) for heading date, we carried out QTL analysis in the BC1F1 population and detected two QTLs, qDTH-7-1 and qDTH-7-2, both on chromosome 7, and observed epistatic interaction between them. We conclude that the recessive alleles of these two genes contribute to extremely early heading for the adaptation to Hokkaido environment and to stable rice production in Hokkaido. The relationships between the two QTLs identified in this study and known QTLs are discussed.

引用

页码：393 / 398

页数：6

共 25 条

[1] Mapping of quantitative trait loci controlling low-temperature germinability in rice (Oryza sativa L.) [J].

Fujino, K ;

Sekiguchi, H ;

Sato, T ;

Kiuchi, H ;

Nonoue, Y ;

Takeuchi, Y ;

Ando, T ;

Lin, SY ;

Yano, M .

THEORETICAL AND APPLIED GENETICS, 2004, 108 (05) :794-799

[2] Photoperiod sensitivity gene controlling heading date in rice cultivars in the northernmost region of Japan [J].

Fujino, K .

EUPHYTICA, 2003, 131 (01) :97-103

[3]

FUJINO K, 2005, IN PRESS BREED SCI

[4]

Harushima Y, 1998, GENETICS, V148, P479

[5]

Ichitani K, 1998, BREEDING SCI, V48, P51

[6] Genetic analyses of low photoperiod sensitivity of rice cultivars from the northernmost regions of Japan [J].

Ichitani, K ;

Okumoto, Y ;

Tanisaka, T .

PLANT BREEDING, 1998, 117 (06) :543-547

[7] Characterization and detection of epistatic interactions of 3 QTLs, Hd1, Hd2, and Hd3,controlling heading date in rice using nearly isogenic lines [J].

Lin, HX ;

Yamamoto, T ;

Sasaki, T ;

Yano, M .

THEORETICAL AND APPLIED GENETICS, 2000, 101 (07) :1021-1028

[8]

Lin HX, 2003, BREEDING SCI, V53, P51, DOI 10.1270/jsbbs.53.51

[9] Identification and characterization of a quantitative trait locus, Hd9, controlling heading date in rice [J].

Lin, HX ;

Ashikari, M ;

Yamanouchi, U ;

Sasaki, T ;

Yano, M .

BREEDING SCIENCE, 2002, 52 (01) :35-41

[10] Mapping quantitative trait loci controlling seed dormancy and heading date in rice, Oryza sativa L., using backcross inbred lines [J].

Lin, SY ;

Sasaki, T ;

Yano, M .

THEORETICAL AND APPLIED GENETICS, 1998, 96 (08) :997-1003

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